Answer:
Ivan needs to save $320.
Step-by-step explanation:
Ivan is saving money to buy a computer.
He started his savings with $225.
First week he added $75, the second week he added $200, the third week he had to take out $50 and the fourth week he added $125.
225 + 75 + 200 - 50 + 125
= $575
The cost of computer is $895
Now he needs to save = 895 - 575
= $320
Ivan needs to save $320.